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A method for detecting steering performance of radial tires for passenger cars
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A radial tire and steering performance technology, applied in the field of tire steering performance testing, can solve the problems of large deviation of test results, long time, high cost, etc.
Active Publication Date: 2021-09-10
SAILUN GRP CO LTD
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[0004] In order to solve the technical problems that the tire steering performance detection method in the prior art is expensive, takes a long time, and has large deviations in detection results, the present invention provides a passenger car radial tire steering performance detection method
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Embodiment 1
[0036] Step 1. Detect the lateral rigidity of the tire (A):
[0042] 3.1. During the torsional stiffness test, the detection test platform is rotated at an angle D of 5° / min around the direction parallel to the z-axis z2When it is equal to 1.5°, the torsional moment T exerted by the tire acting on the test platform z2 ;
[0043] 3.2. During the torsional stiffness test, the test platform is ro...
Embodiment 2
[0050] Step 1. Detect the lateral rigidity of the tire (A):
[0051] 2.1. In the lateral stiffness test, the tire lateral displacement S r2 When it is 10mm, detect the force F of the tire acting on the test platform parallel to the y-axis r2 ;
[0052] 2.2. In the lateral stiffness test, the tire lateral displacement S r1 When it is 5mm, detect the force F of the tire acting on the test platform parallel to the y-axis r1 ;
[0053] 2.3. Calculate the lateral stiffness (A) of the tire under 100% load according to the following lateral stiffness calculation formula,
[0054]
[0055] Step 2. Detect the torsional rigidity of the tire (B):
[0056] 3.1. During the torsional stiffness test, the detection test platform is rotated at an angle D of 5° / min around the direction parallel to the z-axis z2 When it is equal to 1.5°, the torsional moment T exerted by the tire acting on the test platform z2 ;
[0057] 3.2. During the torsional stiffness test, the test platform is r...
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Abstract
The invention belongs to the technical field of tire steering performance detection and discloses a method for detecting the steering performance of a passenger car radial tire. The method includes detecting the lateral rigidity (A) of the tire, detecting the torsional rigidity (B) of the tire and detecting the footprint area (C) of the tire, through the lateral rigidity (A), the torsional rigidity (B) and the footprint The area (C) is used to calculate the steering value (W) of the tire, and the steering performance of the passenger car radial tire is evaluated by the steering value, wherein, W=A×0.2+B×0.2+C×0.6. The invention can easily and accurately predict the steering performance of the product through the calculation formula, and the obtained tire steering performance is very close to the actual road test. Complete steering performance prediction and multi-scheme optimization, saving cost and time.
Description
technical field [0001] The invention relates to a tire steering performance detection method, in particular to a passenger car radial tire steering performance detection method. Background technique [0002] With the continuous development of my country's economy and society, passenger cars have developed rapidly. As the only part of the car in contact with the road, passenger car radial tires have also developed rapidly. Tires mainly undertake four basic functions in cars: carrying loads and buffering the road. Shock, providing starting acceleration / braking capabilities and providing steering capabilities, among which the steering performance of radial tires for passenger cars is an important part of tire handling performance, which is closely related to daily driving, such as changing lanes, turning, turning, etc. are all affected by steering performance , the main indicators are steering stability and steering response. Good steering performance can effectively improve driv...
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